

Yes, the smaller one hangs the lowest, and that’s the left one for most men.
Source: McMANUS, I. Scrotal asymmetry in man and in ancient sculpture. Nature 259, 426 (1976). https://doi.org/10.1038/259426b0
… but that’s paywalled so here’s a blogpost about the study









Purple rain by Prince, from the movie with the same name